题目内容
EFI systems use injectors to spray the fuel.
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Depending on engine operating conditions, injection quantity will vary.
The amount of fuel delivered by the injectors and their timing are controlled by the electronic control unit(ECU).
Air enters the engine through the air induction system where it is measured by the air flow meter.
在Windows 系统工具中,利用（）可以将零散的可用空间连在一片。
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